WO2022082799A1 - Procédé de programmation inter-porteuse, dispositif de terminal et dispositif de réseau d'accès - Google Patents

Procédé de programmation inter-porteuse, dispositif de terminal et dispositif de réseau d'accès Download PDF

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Publication number
WO2022082799A1
WO2022082799A1 PCT/CN2020/123449 CN2020123449W WO2022082799A1 WO 2022082799 A1 WO2022082799 A1 WO 2022082799A1 CN 2020123449 W CN2020123449 W CN 2020123449W WO 2022082799 A1 WO2022082799 A1 WO 2022082799A1
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WO
WIPO (PCT)
Prior art keywords
cell
uss
pdcch
data
scheduling
Prior art date
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PCT/CN2020/123449
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English (en)
Chinese (zh)
Inventor
花梦
彭金磷
王轶
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华为技术有限公司
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to JP2023524527A priority Critical patent/JP2023546933A/ja
Priority to CN202080106597.1A priority patent/CN116349162A/zh
Priority to EP20958381.4A priority patent/EP4224741A4/fr
Priority to PCT/CN2020/123449 priority patent/WO2022082799A1/fr
Publication of WO2022082799A1 publication Critical patent/WO2022082799A1/fr
Priority to US18/304,526 priority patent/US20230262686A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0096—Indication of changes in allocation
    • H04L5/0098—Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a cross-carrier scheduling method, a terminal device, and an access network device.
  • cross-carrier scheduling refers to one carrier scheduling another A carrier, that is, a physical downlink control channel (PDCCH) sent on one carrier for scheduling data transmission of another carrier, for example, a carrier of a primary cell (primary cell, PCell) schedules a secondary cell (secondary cell, SCell) carrier, or the carrier of one secondary cell SCell schedules the carrier of another secondary cell SCell.
  • a carrier of a primary cell primary cell
  • SCell secondary cell
  • the carrier of the secondary cell SCell can schedule the carrier of the primary cell PCell.
  • Embodiments of the present application provide a cross-carrier scheduling method, terminal equipment, and access network equipment, so as to implement efficient handover between USSs on BWPs of two cells.
  • an embodiment of the present application provides a cross-carrier scheduling method, the method includes: a terminal device monitors a PDCCH used for scheduling data of a third cell on at least one USS in a first cell, and receives first indication information, The first indication information is used to determine to stop monitoring the PDCCH for scheduling data of the third cell on at least one USS of the first cell, or to determine to monitor data for scheduling the third cell on at least one USS of the second cell
  • the PDCCH of the third cell is the first cell or the second cell; the terminal device stops monitoring the PDCCH used to schedule the data of the third cell on at least one USS of the first cell according to the first indication information, and determines that in the second cell
  • the PDCCH for scheduling data of the third cell is monitored on at least one USS on the cell, so as to achieve efficient handover between the USSs on the two cells.
  • the first indication information includes at least one of the following indications: an indication of deactivating the first cell; an indication of a BWP handover on the first cell, wherein the BWP handover There is no first USS on the BWP to be handed over to, and the first USS is a USS that contains a PDCCH candidate for the PDCCH that can carry data for scheduling the first cell; the first cell is configured as an indication of a dormant cell; in the first cell The indication of search space set switching on , wherein the search space set switching indication to indicate that there is no first USS in the search space set to be switched to.
  • the first indication information includes at least one of the following indications: an indication of activating the second cell, wherein the search space of the activated second cell includes the first USS in the search space set , the first USS is a USS that contains a PDCCH candidate for a PDCCH that can carry data for scheduling the first cell; an indication of BWP handover on the second cell, wherein the BWP indicated by the BWP handover indication to be handed over has a first USS; an indication to configure the second cell as a non-dormant cell, wherein the search space set of the non-dormant second cell includes the first USS; an indication that a search space set switching occurs on the second cell, wherein the search space set switching occurs There is the first USS in the search space set to be indicated by the indication to be switched to.
  • the first indication information includes the first type of indication information and the second type of indication information, and the first type of indication information is used to determine the first type of indication information belonging to the first USS on the second cell.
  • the PDCCH used for scheduling data of the third cell is monitored on a set of USSs, and the second type of indication information is used to determine the PDCCH used for scheduling data of the third cell monitored on the second set of USSs belonging to the first USS on the second cell .
  • the cross-carrier scheduling method provided in this embodiment of the present application further includes: the terminal device determines, according to the first indication information, to stop monitoring the at least one USS in the first cell for The time for scheduling the PDCCH of the data of the third cell, or determining the start time of monitoring the PDCCH for scheduling the data of the third cell on at least one USS on the second cell.
  • the terminal device determines, according to the first indication information, to stop at least one USS on the first cell The time of monitoring the PDCCH used for scheduling the data of the third cell on the second cell, or determining the start time of monitoring the PDCCH used for scheduling the data of the third cell on at least one USS on the second cell, specifically: the terminal device according to the first The effective time of deactivation of the cell determines the start time of monitoring the PDCCH used to schedule data of the third cell on at least one USS on the second cell; or, the terminal device determines to stop according to the effective time of the activation of the second cell The time of the PDCCH for scheduling data of the third cell is monitored on at least one USS on the first cell.
  • the terminal device determines, according to the first indication information, to stop monitoring the at least one USS in the first cell.
  • the terminal device specifies the time according to the DCI and the protocol , determine the time to stop monitoring the PDCCH for scheduling data of the third cell on at least one USS on the first cell, or determine to monitor the PDCCH for scheduling data of the third cell on at least one USS on the second cell or, according to the DCI and the search space set switching time, the terminal device determines the time to stop monitoring the PDCCH used to schedule the data of the third cell on at least one USS on the first cell, or determine the time to stop monitoring the PDCCH for scheduling data of the third cell on the second cell.
  • the start time of the PDCCH used for scheduling the data of the third cell is monitored on at least one USS of the The time of the PDCCH of the data of the cell, or determine the start time of monitoring the PDCCH for scheduling the data of the third cell on at least one USS on the second cell; or, the terminal device switches the time according to the configured minimum K0 and search space group The larger of the two, determine the time to stop monitoring the PDCCH used for scheduling data of the third cell on at least one USS on the first cell, or determine the time to stop monitoring the PDCCH used for scheduling the third cell on at least one USS on the second cell.
  • the start time of the PDCCH of the data of the three cells is monitored on at least one USS of the The time of the PDCCH of the data of the cell, or determine the start time of monitoring the PDCCH for scheduling the data of the third cell on at least one USS on the second cell; or, the terminal device switches the time according to the configured minimum K0 and search space group The larger of the two, determine the time to stop
  • the terminal device determines, according to the first indication information, the time to stop monitoring the PDCCH used for scheduling data of the third cell on at least one USS in the first cell, or determines Monitoring the start time of the PDCCH used for scheduling data of the third cell on at least one USS in the second cell, specifically: the terminal device determines the PDCCH in the second cell according to the effective time of the BWP handover in the first cell The start time of the PDCCH used to schedule the data of the third cell is monitored on at least one USS; wherein, the BWP to which the BWP handover instruction indicates that there is no first USS to be handed over to, and the first USS is the first USS that contains the third cell that can be loaded and scheduled.
  • the terminal device determines, according to the first indication information, the time to stop monitoring the PDCCH used for scheduling data of the third cell on at least one USS in the first cell, or determines Monitoring the start time of the PDCCH used for scheduling data of the third cell on at least one USS in the second cell, specifically: the terminal device determines at least one USS in the second cell according to the effective time when the first cell is a dormant cell The USS monitors the start time of the PDCCH used for scheduling the data of the third cell; or, according to the effective time when the second cell is a non-sleep cell, the terminal device determines to stop monitoring on at least one USS on the first cell for scheduling the first cell. The time of the PDCCH of the data of the three cells.
  • the terminal device determines, according to the first indication information, the time to stop monitoring the PDCCH used for scheduling data of the third cell on at least one USS in the first cell, or determines Monitoring the start time of the PDCCH used to schedule data of the third cell on at least one USS in the second cell, specifically: the terminal device determines that the second cell is on the second cell according to the time when the search space set is switched in the first cell.
  • the start time of the PDCCH used to schedule the data of the third cell is monitored on at least one USS of The time of the handover of the search space set on the cell, determines the time to stop monitoring the PDCCH used to schedule the data of the third cell on at least one USS on the first cell; wherein, the indication of the handover of the search space set is to indicate the time to be handed over to The search space set has the first USS.
  • the terminal device determines the time for stopping at least one USS on the first cell from monitoring the PDCCH used for scheduling data of the third cell, or determines to monitor the time on at least one USS on the second cell.
  • the start time of the PDCCH used to schedule the data of the third cell thereby ensuring efficient handover between the two cells and reducing the impact on the scheduling of the first cell.
  • an embodiment of the present application provides a cross-carrier scheduling method.
  • the method includes: an access network device determines to stop at least one USS in a first cell from sending a PDCCH for scheduling data of a third cell, and determines that at least one USS in the first cell The PDCCH used to schedule data of the third cell is sent on at least one first USS on the third cell, and the third cell is the first cell or the second cell; the access network device sends the first indication information to the terminal device; wherein, the first indication The information is used to instruct the terminal device to determine to stop monitoring the PDCCH for scheduling data of the third cell on at least one USS of the first cell, or to determine to monitor data for scheduling the third cell on at least one USS of the second cell the PDCCH, so as to achieve efficient handover between the USSs on the two cells.
  • the first indication information includes at least one of the following indications: an indication of deactivating the first cell; an indication of a BWP handover on the first cell, wherein the BWP handover There is no first USS on the BWP to be handed over to, and the first USS is a USS that contains a PDCCH candidate for the PDCCH that can carry data for scheduling the first cell; the first cell is configured as an indication of a dormant cell; in the first cell The indication of search space set switching on , wherein the search space set switching indication to indicate that there is no first USS in the search space set to be switched to.
  • the first indication information includes at least one of the following indications: an indication of activating the second cell, wherein the search space of the activated second cell includes the first USS in the search space set , the first USS is a USS that contains a PDCCH candidate for a PDCCH that can carry data for scheduling the first cell; an indication of BWP handover on the second cell, wherein the BWP indicated by the BWP handover indication to be handed over has a first USS; an indication to configure the second cell as a non-dormant cell, wherein the search space set of the non-dormant second cell includes the first USS; an indication that a search space set switching occurs on the second cell, wherein the search space set switching occurs There is the first USS in the search space set to be indicated by the indication to be switched to.
  • the first indication information includes the first type of indication information and the second type of indication information
  • the first type of indication information is used to instruct the terminal device to determine that the second cell belongs to the first type of indication information.
  • the first set of USS of the USS monitors the PDCCH used for scheduling data of the third cell
  • the second type of indication information is used to instruct the terminal device to determine to monitor the second set of USSs belonging to the first USS on the second cell for scheduling the third cell.
  • the cross-carrier scheduling method provided by the present application further includes: the access network device determines, according to the first indication information, to stop sending data for at least one USS on the first cell The time for scheduling the PDCCH of the data of the third cell, or determining the start time of transmitting the PDCCH for scheduling the data of the third cell on at least one USS on the second cell.
  • the access network device determines, according to the first indication information, to stop at least The time at which the PDCCH used for scheduling data of the third cell is sent on one USS, or the start time of sending the PDCCH used for scheduling data of the third cell on at least one USS on the second cell, specifically: the access network The device determines, according to the effective time of the deactivation of the first cell, the start time of sending the PDCCH used to schedule the data of the third cell on at least one USS in the second cell; The effective time is to determine the time to stop sending the PDCCH for scheduling data of the third cell on at least one USS in the first cell.
  • the access network device determines to stop on at least one USS in the first cell according to the first indication information
  • the time for sending the PDCCH for scheduling data of the third cell, or determining the start time for sending the PDCCH for scheduling data of the third cell on at least one USS on the second cell specifically: the access network device according to the DCI and the protocol specifies the time, determine the time to stop sending the PDCCH for scheduling the data of the third cell on at least one USS on the first cell, or determine the time to send the PDCCH for scheduling the third cell on at least one USS on the second cell
  • the access network device determines, according to the first indication information, the time to stop sending the PDCCH for scheduling data of the third cell on at least one USS in the first cell, Or determine the start time of sending the PDCCH used for scheduling data of the third cell on at least one USS in the second cell, specifically: the access network device determines, according to the effective time of the BWP handover in the first cell, the The start time of sending the PDCCH used to schedule data of the third cell on at least one USS in the second cell; wherein, the BWP to which the BWP handover indication indicates does not have the first USS, and the first USS contains the bearer scheduling The USS of the PDCCH candidate of the PDCCH of the data of the third cell; or, according to the effective time of the BWP handover in the second cell, the access network device determines to stop sending on at least one USS in the first cell for scheduling the third cell The time of the PDCCH of the data of the cell; where
  • the access network device determines, according to the first indication information, the time to stop sending the PDCCH for scheduling data of the third cell on at least one USS in the first cell, Or determine the start time of sending the PDCCH used to schedule data of the third cell on at least one USS in the second cell, specifically: the access network device determines, according to the effective time when the first cell is a dormant cell, that in the second cell The start time of sending the PDCCH used to schedule the data of the third cell on at least one USS on The time at which the PDCCH used to schedule the data of the third cell is sent on.
  • the access network device determines, according to the first indication information, the time to stop sending the PDCCH for scheduling data of the third cell on at least one USS in the first cell, Or determine the start time of sending the PDCCH used for scheduling data of the third cell on at least one USS in the second cell, specifically: the access network device determines the time at which the search space set is switched in the first cell The start time of sending the PDCCH used for scheduling data of the third cell on at least one USS on the second cell; wherein, the search space set switching indication indicates that there is no first USS in the search space set to be switched to; or, the access The network device determines the time to stop sending the PDCCH used to schedule the data of the third cell on at least one USS on the first cell according to the time of the search space set switching on the second cell; wherein, the indication of the search space set switching The set of search spaces to be indicated to switch to has the first USS.
  • the terminal device determines the time for stopping at least one USS on the first cell from monitoring the PDCCH used for scheduling data of the third cell, or determines to monitor the time on at least one USS on the second cell.
  • the start time of the PDCCH used to schedule the data of the third cell thereby ensuring efficient handover between the two cells and reducing the impact on the scheduling of the first cell.
  • the present application provides a communication device, comprising: a processor and a storage medium; at least one processor and an interface circuit, where the interface circuit is configured to receive signals from other communication devices other than the communication device and transmit to the processor Or send the signal from the processor to other communication devices than the communication device, and the processor is used to implement the first aspect and any one of the possible implementations of the first aspect through logic circuits or executing code instructions.
  • the communication device may be a terminal device or a chip in the terminal device.
  • the present application provides a communication device, comprising: a processor and a storage medium; at least one processor and an interface circuit, where the interface circuit is configured to receive signals from other communication devices other than the communication device and transmit to the processor Or send the signal from the processor to other communication devices than the communication device, and the processor is used to implement the second aspect and any one of the possible implementations of the second aspect through logic circuits or executing code instructions.
  • the communication device may be an access network device or a chip in the access network device.
  • the present application provides a communication system, including a first communication device and a second communication device.
  • the first communication device is configured to execute the method described in any possible implementation manner of the first aspect and the first aspect;
  • the second communication device is configured to execute any one of the second aspect and the second aspect The methods described in possible implementations.
  • the present application provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the instructions are executed on a computer, the computer is made to execute any one of the first aspect and the first aspect.
  • the present application provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the instructions are executed on a computer, the computer is made to execute any one of the second aspect and the second aspect.
  • the present application provides a computer program product comprising instructions that, when the computer program product is run on a computer, cause the computer to perform as described in the first aspect and any possible implementation manner of the first aspect method.
  • the present application provides a computer program product comprising instructions that, when the computer program product is run on a computer, cause the computer to perform as described in the second aspect and any possible implementation of the second aspect method.
  • FIG. 1 is a schematic structural diagram of a mobile communication system to which an embodiment of the application is applied;
  • FIG. 2 is a schematic diagram of a hardware structure of an access network device and a terminal device provided by an embodiment of the present application;
  • FIG. 3 is a flowchart of a cross-carrier scheduling method provided by an embodiment of the present application.
  • FIG. 4 is a flowchart of another cross-carrier scheduling method provided by an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • the cross-carrier scheduling method provided in the embodiment of the present application is applied to the mobile communication system 100 shown in FIG. 1 .
  • FIG. 1 is a schematic structural diagram of a mobile communication system to which an embodiment of the present application is applied.
  • the mobile communication system 100 includes a core network device 110 , an access network device 120 and at least one terminal device (such as the terminal device 130 and the terminal device 140 in FIG. 1 ).
  • the terminal device is connected with the access network device 120 in a wireless manner
  • the access network device 120 is connected with the core network device 110 in a wireless or wired manner.
  • the core network device 110 and the access network device 120 may be independent and different physical devices, or the functions of the core network device 110 and the logical functions of the access network device 120 may be integrated on the same physical device, or they may be one physical device.
  • the physical device integrates the functions of some core network devices and some access network devices.
  • Terminal equipment can be fixed or movable.
  • FIG. 1 is just a schematic diagram, and the communication system may also include other network devices, such as wireless relay devices and wireless backhaul devices, which are not shown in FIG. 1 .
  • the embodiments of the present application do not limit the number of core network devices, wireless access network devices, and terminal devices included in the mobile communication system.
  • the access network device 120 is an access device through which the terminal device wirelessly accesses the mobile communication system, and may be a base station NodeB, an evolved base station eNodeB, a base station in an NR mobile communication system, a base station in a future mobile communication system, or a base station in a future mobile communication system.
  • a base station NodeB an evolved base station eNodeB
  • a base station in an NR mobile communication system a base station in a future mobile communication system
  • a base station in a future mobile communication system or a base station in a future mobile communication system.
  • the embodiments of the present application do not limit the specific technology and specific device form adopted by the wireless access network device.
  • a terminal device may also be referred to as a terminal terminal, a user equipment (UE), a mobile station (mobile station, MS), a mobile terminal (mobile terminal, MT), and the like.
  • UE user equipment
  • MS mobile station
  • MT mobile terminal
  • Access network equipment and terminal equipment can be deployed on land, including indoor or outdoor, handheld or vehicle; can also be deployed on water; can also be deployed in the air on aircraft, balloons and artificial satellites.
  • the embodiments of the present application do not limit the application scenarios of the access network device and the terminal device.
  • the embodiments of the present application may be applicable to downlink signal transmission, uplink signal transmission, and device to device (device to device, D2D) signal transmission.
  • the sending device is an access network device
  • the corresponding receiving device is a terminal device.
  • the sending device is a terminal device
  • the corresponding receiving device is an access network device.
  • the sending device is a terminal device
  • the corresponding receiving device is also a terminal device.
  • the transmission direction of the signal in the embodiments of the present application is not limited.
  • Communication between access network equipment and terminal equipment and between terminal equipment and terminal equipment can be performed through licensed spectrum (licensed spectrum), or through unlicensed spectrum (unlicensed spectrum), or both licensed spectrum and license-free spectrum.
  • spectrum for communication The radio access network equipment and the terminal equipment and between the terminal equipment and the terminal equipment can communicate through the frequency spectrum of 6GHz and below, and can also communicate through the frequency spectrum above 6GHz, and can also use the frequency spectrum below 6GHz and above 6GHz at the same time. spectrum for communication.
  • the embodiments of the present application do not limit the spectrum resources used between the access network device and the terminal device.
  • FIG. 2 it is a schematic diagram of a hardware structure of an access network device and a terminal device according to an embodiment of the present application.
  • the terminal device 130 includes at least one processor 301 , at least one memory 302 , and at least one transceiver 303 .
  • the terminal device 30 may further include an output device 304 and an input device 305 .
  • the processor 301, the memory 302 and the transceiver 303 are connected by a bus.
  • the processor 301 may be a general-purpose central processing unit (Central Processing Unit, CPU), a microprocessor, an application-specific integrated circuit (Application-Specific Integrated Circuit, ASIC), or one or more processors for controlling the execution of the programs of the present application. integrated circuit.
  • the processor 301 may also include multiple CPUs, and the processor 301 may be a single-CPU processor or a multi-CPU processor.
  • a processor herein may refer to one or more devices, circuits, or processing cores for processing data (eg, computer program instructions).
  • Memory 302 may be Read-Only Memory (ROM) or other types of static storage devices that can store static information and instructions, Random Access Memory (RAM), or other types of information and instructions that can be stored It can also be an electrically erasable programmable read-only memory (Electrically Erasable Programmable Read-Only Memory, EEPROM), a compact disc read-only memory (CD-ROM) or other optical disk storage, optical disk storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or capable of carrying or storing desired program code in the form of instructions or data structures and capable of being executed by a computer Access any other medium without limitation.
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • EEPROM Electrically erasable programmable Read-only memory
  • CD-ROM Compact disc read-only memory
  • CD-ROM compact disc read-only memory
  • optical disk storage including compact discs, laser discs, optical discs, digital versatile discs
  • the memory 302 may exist independently and be connected to the processor 301 through a bus.
  • the memory 302 may also be integrated with the processor 301 .
  • the memory 302 is used for storing the application program code for executing the solution of the present application, and the execution is controlled by the processor 301 .
  • the processor 301 is configured to execute the computer program code stored in the memory 302, so as to implement the coordinated transmission method described in the embodiments of the present application.
  • the transceiver 303 can use any transceiver-like device for communicating with other devices or communication networks, such as Ethernet, Radio Access Network (RAN), Wireless Local Area Networks (WLAN), etc. .
  • the transceiver 303 includes a transmitter Tx and a receiver Rx.
  • the output device 304 communicates with the processor 301 and can display information in a variety of ways.
  • the output device 304 may be a Liquid Crystal Display (LCD), a Light Emitting Diode (LED) display device, a Cathode Ray Tube (CRT) display device, or a projector (projector) Wait.
  • the input device 305 is in communication with the processor 301 and can receive user input in a variety of ways.
  • the input device 305 may be a mouse, a keyboard, a touch screen device or a sensing device, or the like.
  • the access network device 120 includes at least one processor 201 , at least one memory 202 , at least one transceiver 203 and at least one network interface 204 .
  • the processor 201, the memory 202, the transceiver 203 and the network interface 204 are connected by a bus.
  • the network interface 204 is used to connect with the core network device through a link (such as the S1 interface), or connect with the network interface of other access network devices through a wired or wireless link (such as the X2 interface) (not shown in the figure). ), which is not specifically limited in the embodiments of the present application.
  • the access network device schedules the physical downlink shared channel (PDSCH) to the terminal device through the physical downlink control channel (PDCCH).
  • PDSCH physical downlink shared channel
  • PDCCH physical downlink control channel
  • K0>0 indicates that the PDCCH and the scheduled PDSCH are not in the same time slot.
  • Minimum K0 refers to the minimum available slot offset of the PDSCH when scheduling across time slots, that is, the smallest available K0 in the slot offset values between the PDCCH and the scheduled PDSCH.
  • the time slot actually refers to the LTE subframe. If applied to the NR system, the time slot is the NR time slot.
  • the access network device schedules the PDSCH to the terminal device through the PDCCH.
  • the terminal device periodically monitors the PDCCH used to schedule the PDSCH.
  • minimum K0>0 the terminal device only needs to monitor the PDCCH, and does not need to buffer the possible PDSCH in this time slot, thereby saving the power consumption of the terminal device. If the terminal device monitors that the PDSCH is scheduled on the PDCCH, the terminal device receives the PDSCH in the time slot of K0 indicated by the PDCCH.
  • BWP Bandwidth Part
  • BWP bandwidth part
  • the state of the BWP includes an active state and an inactive state.
  • the active state refers to the workable state.
  • the BWP being in an active state means that the BWP is in a workable state, which can also be described as "activated BWP".
  • the BWP may enable signal transmission or reception.
  • the inactive state is a concept corresponding to the active state, which refers to a non-working state.
  • the BWP being in an inactive state means that the BWP is in an inoperable state, which can also be described as "inactive BWP" or "deactivated BWP".
  • the process of converting the BWP from an inactive state to an active state, or the process of converting an inoperable BWP into a workable BWP is the activation of the BWP.
  • the process of converting the BWP from an active state to an inactive state, or the process of converting a working BWP to an inoperable BWP is both deactivating the BWP, and can also be described as performing deactivation on the BWP.
  • the BWP can be divided into downstream BWP and upstream BWP.
  • the access network device can configure multiple DL BWPs and multiple UL BWPs for the terminal device, and activate at least one DL BWP and at least one UL BWP, and the terminal device receives the access network on the activated DL BWP (ie active DL BWP). Downlink transmission sent by the device. Wherein, the terminal equipment sends uplink transmission on the activated UL BWP.
  • the uplink transmission includes but is not limited to: transmission of uplink control signaling, transmission of uplink data and transmission of uplink reference signals.
  • the uplink control signaling includes: correct acknowledgement (acknowledge, ACK)/error acknowledgement (negative acknowledgement), scheduling request (scheduling request, SR), channel state information (channel state information, CSI).
  • the uplink reference signals include: demodulation reference signals (DMRS), phase-tracking reference signals (PTRS), sounding reference signals (SRS), and the like.
  • NR supports using the DCI of scheduling data to trigger terminal equipment to perform BWP handover.
  • BWP switch for switching the active BWP.
  • the active BWP can vary, known as "BWP handover".
  • the access network equipment configures two DL BWPs for the terminal equipment, namely DL BWP1 and DL BWP2.
  • the downlink scheduling DCI format 1_1 or DCI format 1_2 may carry the BWP switching indication.
  • the access network device may send the downlink scheduling DCI format 1_1 or DCI format 1_2 to the terminal device, where the scheduling DCI is carried on the physical downlink control channel PDCCH and transmitted through the PDCCH.
  • the terminal device receives the scheduled DCI, and switches to the DL BWP indicated by the scheduled DCI to receive or send data.
  • the terminal device needs a certain processing delay to switch from one BWP to another BWP, and the processing delay is called T BWPswitchDelay . This value is defined as:
  • NR defines two different processing delay types, as shown in Table 1.
  • ⁇ is the subcarrier spacing parameter of the current terminal equipment operation, that is, the subcarrier spacing of the terminal equipment operation is 2 ⁇ ⁇ 15kHz.
  • a terminal device (such as a UE) can report to an access network device (such as a gNB) whether the supported BWP handover capability is type 1 or type 2.
  • a CCE contains 6 resource element groups (REG: Resource-Element Group), and each REG corresponds to an RB on an OFDM symbol.
  • the terminal equipment may detect a PDCCH candidate to determine whether the terminal equipment's own PDCCH exists.
  • the access network device will configure one or more search spaces search space (or called search space set search space set, which can be expressed uniformly using search space) for terminal equipment.
  • the search space includes multiple PDCCH candidates, one PDCCH candidate may carry one PDCCH, and the terminal device blindly detects the PDCCH on the PDCCH candidate.
  • the search space is configured as follows:
  • searchSpaceId the identifier of the search space
  • controlResourceSetId The ID of the CORESET associated with the search space, which can be used to determine the time-frequency position of the search space;
  • monitoringSlotPeriodicityAndOffset The period and offset of the search space, which can be used to determine the time domain position of the search space;
  • nrofCandidates the number of PDCCH candidates for each AL
  • searchSpaceType Indicates the search space type. There are two types of search space sets: Common Search Space (CSS, Common Search Space) and UE-specific Search Space (USS: Ue-specific Search Space).
  • CSS Common Search Space
  • USS UE-specific Search Space
  • the search space configuration for cross-carrier scheduling supported in NR is:
  • nrofCandidates indicates the number of AL and PDCCH candidates in the associated scheduling carrier.
  • searchSpaceId indicates the identification of the search space (during cross-carrier scheduling, search spaces with the same searchSpaceId in the scheduling cell and the scheduled cell are associated with each other).
  • the high-level parameter searchSpaceGroupIdList-r16 can configure a search space group identifier for a terminal device, and the identifier of each search space group corresponds to a set of Type3-PDCCH CSS set or USS (other CSS sets are always monitored ).
  • the high-level parameter searchSpaceSwitchingDelay-r16 can configure a switching capability P switch for a terminal device, and the minimum value of this P switch is shown in Table 2.
  • the high-level parameter searchSpaceGroupIdList-r16 has a minimum value of 10 and a maximum value of 52.
  • the terminal device can report the handover capability 1 or handover capability 2 that it supports. If it is not reported, the default is capability 1.
  • ⁇ is the subcarrier spacing parameter of the current terminal equipment operation, that is, the subcarrier spacing of the terminal equipment operation is 2 ⁇ ⁇ 15kHz.
  • the high-level parameter searchSpaceSwitchingTimer-r16 can configure a timer value for a terminal device. For each slot corresponding to the reference SCS ⁇ , the timer value is decremented by 1. When the timer decreases to 0, the terminal device starts monitoring the PDCCH on a default set of search space sets.
  • the implementation manner of the terminal device switching the PDCCH on the monitoring search space set can be as follows:
  • DCI format 2_0 can indicate the switching method of the search space set group as follows:
  • the terminal device starts monitoring the PDCCH on the search space set group whose identifier is 0 in the search space group, and stops monitoring the PDCCH on the search space set group whose identifier is 1 in the search space group.
  • the terminal device starts monitoring the PDCCH on the search space set group whose identifier is 1 in the search space group, and stops monitoring the PDCCH on the search space set group whose identifier is 0 in the search space group. And, the terminal device sets the timer value to searchSpaceSwitchingTimer-r16.
  • the terminal equipment On a serving cell, the terminal equipment is monitoring the PDCCH on the search space set group whose identifier is 1 in the search space group. If the timer expires in a slot, the P switch symbol after the slot belongs to the PDCCH after the slot. On the first slot, the terminal device starts monitoring the PDCCH on the search space set group whose identifier is 0 in the search space group, and stops monitoring the PDCCH on the search space set group whose identifier is 1 in the search space group.
  • the switching method of the search space set group is as follows:
  • the terminal device If the terminal device detects the PDCCH on the search space set group whose identifier is 0 in the search space group, then on this serving cell, the time slot after the time slot to which the symbol of the PDCCH carrying the DCI format and the symbol of the switching capability P switch belong. In the first slot, the terminal device starts monitoring the PDCCH on the search space set group whose identifier is 1 in the search space group, and stops monitoring the PDCCH on the search space set group whose identifier is 0 in the search space group.
  • the terminal equipment On a serving cell, the terminal equipment is monitoring the PDCCH on the search space set group whose identifier is 1 in the search space group. If the timer expires in a slot, the P switch symbol after the slot belongs to the PDCCH after the slot. On the first slot, the terminal device starts monitoring the PDCCH on the search space set group whose identifier is 0 in the search space group, and stops monitoring the PDCCH on the search space set group whose identifier is 1 in the search space group.
  • the terminal equipment Under the dual link (DC, Dual connectivity), the terminal equipment establishes links with multiple cells, and these cells are divided into two groups: the primary cell group (MCG, Master Cell Group) and the secondary cell group (SCG, Secondary Cell group). If dual linking is not performed, then the set of cells with which the terminal device communicates is the MCG.
  • MCG Primary Cell Group
  • SCG Secondary Cell group
  • Multiple cells in the MCG are joined together by a carrier aggregation (CA, Carrier aggregation) technology.
  • Multiple cells in the SCG are joined together by a carrier aggregation (CA, Carrier aggregation) technology.
  • CA carrier aggregation
  • the primary cell in the MCG is the primary cell (PCell, Primary Cell)
  • the primary cell in the SCG is the primary secondary cell (PSCell, Primary Secondary Cell)
  • the other cells in the MCG and SCG are the secondary cells (SCell, Secondary Cell).
  • An activated SCell includes the following series of actions:
  • the terminal device sends a sounding reference signal (SRS) to the access network device;
  • SRS sounding reference signal
  • the terminal device reports the channel state information (CSI) of the SCell;
  • the terminal equipment detects the PDCCH for the SCell and transmission on the SCell;
  • the access network device configures the terminal device to transmit the PUCCH on the carrier, the access network device sends the PUCCH to the terminal device.
  • the terminal device starts or restarts the sCellDeactivationTimer (SCell deactivation timer), which triggers the terminal device to report the PHR;
  • the MAC entity of the terminal device When the MAC entity of the terminal device receives a command to deactivate a SCell or the sCellDeactivationTimer of the SCell times out, it deactivates the SCell, or stops the sCellDeactivationTimer of the SCell, or refreshes (clears) all the HARQ buffers on the SCell (hybrid automatic repeat request buffer).
  • the terminal device If an SCell is deactivated, the terminal device does not send SRS in the corresponding SCell, does not report the CSI of this SCell, does not transmit uplink data, does not detect the PDCCH used for this SCell and transmitted on this SCell, and does not send PUCCH.
  • the access network device sends the Activation/Deactivation MAC CE to the terminal device.
  • the terminal device determines the activation and deactivation states of the SCell according to the information in the MAC CE.
  • the terminal device can also deactivate the SCell according to the timer.
  • the terminal device maintains a deactivation timer sCellDeactivationTimer for each SCell, corresponding to all SCells of a terminal device, and the value of sCellDeactivationTimer is the same. Further, this value can be configured as "infinity", that is, the timer-based SCell deactivation is disabled, and the terminal device cannot control the deactivation of the SCell at this time.
  • the SCell when the terminal device does not receive data or a PDCCH message on the SCell within the time specified by the deactivation timer, the SCell will be deactivated. This is also the only case where the terminal device can automatically deactivate a certain SCell.
  • the terminal device activates the SCell at slot n+k at the earliest, and activates the SCell within the minimum requirements defined in TS38.133 at the latest.
  • k 1 refers to the transmission slot sequence number of the PUCCH carrying the received HARQ-ACK information of the PDSCH, which is indicated by the PDSCH-to-HARQ-timing-indicator field in the DCI scheduling the PDSCH. is the number of slots used in each subframe under the SCS configuration ⁇ of the PUCCH.
  • the terminal device deactivates the SCell within the minimum requirements defined in TS38.133 at the latest.
  • the terminal device when an SCell is activated, the terminal device starts to detect the SCell and the PDCCH transmitted on the SCell at slot n+kl at the earliest, and at the latest at the minimum requirement defined in TS38.133; when an SCell is deactivated, the terminal device At the earliest at slot n and at the latest at the minimum requirement defined in TS38.133, the PDCCH for this SCell and for transmission on this SCell is not detected.
  • 3GPP Rel-16 introduces the carrier Dormancy (sleep) mechanism of SCell.
  • the switching between the Dormancy (sleep) behavior and the non-dormancy (non-sleep) behavior of the SCell is achieved through BWP handover.
  • the terminal device When a certain SCell is indicated as dormancy, the terminal device will switch from the currently activated downlink BWP to the dormant BWP on the SCell, and the terminal device does not need to perform PDCCH detection on the dormant BWP, or, if the SCell is in cross-carrier scheduling When there is a scheduled carrier, the terminal equipment does not need to detect the PDCCH on the corresponding scheduled carrier that schedules the SCell.
  • the SCell dormancy indication (secondary carrier dormancy indication) field in the DCI format 0_1 or 1_1 indicates whether the SCell is dormancy or non-dormancy, and the DCI can schedule data at the same time.
  • the network configures up to 5 SCell groups through the parameter SCell-groups-for-dormancy-within-active-time.
  • the SCell dormancy indication has up to 5 bits, and each bit corresponds to one of the SCell groups. When the bit indicates '0', the BWP is switched to the dormant BWP on each activated SCell in the corresponding SCell group.
  • each activated SCell in the corresponding SCell group The terminal device on the SCell is in the non-dormant BWP, then the terminal device continues to work on the non-dormant BWP. If the terminal device is in the dormant BWP, then the terminal device switches to the first non-dormant BWP.
  • Mode 2 Indicate whether the SCell is dormancy or non-dormancy through a specific field in DCI format 1_1, and DCI cannot schedule data at the same time.
  • each bit corresponds to one SCell, which is used to indicate whether each SCell is dormancy or non-dormancy.
  • Mode 3 Indicate whether the SCell is dormancy or non-dormancy through the SCell dormancy indication (secondary carrier dormancy indication) field in DCI format 2_6.
  • the indication mode is basically similar to the first mode, the difference is that DCI format 2_6 is a group common DCI, which can be sent to multiple terminal devices without data scheduling.
  • cross-carrier scheduling refers to one carrier scheduling another carrier.
  • the carrier of the primary cell PCell schedules the carrier of the secondary cell SCell, or the carrier of one secondary cell SCell schedules the carrier of another secondary cell SCell.
  • the carrier of the secondary cell SCell may schedule the carrier of the primary cell PCell.
  • the control channel load on the PCell and the SCell varies with time. At one moment, the control channel load on the PCell may be higher than the control channel load on the SCell, and at the next moment, the control channel load on the SCell may be high. Control channel load on PCell. According to the change of the control channel load on the PCell and the SCell, a cell with a smaller load can be selected to transmit the control channel. Therefore, how to efficiently perform handover between USSs on the bandwidth part (BWP) of two cells has become an urgent problem to be solved.
  • BWP bandwidth part
  • an embodiment of the present application provides a cross-carrier scheduling method, in which a terminal device monitors at least one USS on a first cell for scheduling When the PDCCH of the data of the third cell is received, the first indication information is received. According to the first indication information, the terminal device stops at least one USS in the first cell to monitor the PDCCH for scheduling the data of the third cell, and determines that the PDCCH is used for scheduling the data of the third cell. The PDCCH for scheduling data of the third cell is monitored on at least one USS on the cell.
  • the methods in the following embodiments can all be implemented in a device having the above-mentioned hardware structure (such as the terminal device 130 and the terminal device 140 in FIG. 1 ).
  • FIG. 3 is a schematic flowchart of a cross-carrier scheduling method provided by an embodiment of the present application. As shown in Figure 3, the method may include:
  • the access network device determines to stop sending the PDCCH for scheduling data of the third cell on at least one USS of the first cell, and determines to send the PDCCH for scheduling data of the third cell on at least one USS of the second cell.
  • the cell refers to an area that logically provides services to users. Each cell corresponds to one carrier.
  • the first cell may be the primary cell PCell, and the second cell may be the secondary cell SCell.
  • the first cell may be the secondary cell SCell, and the second cell may be the primary cell PCell.
  • the first cell may be a secondary cell SCell, and the second cell may be another secondary cell SCell.
  • the indication content of the first indication information is also different.
  • the first indication information for the first cell includes an indication of BWP handover or an indication of search space set handover.
  • the first cell is an SCell, and the first indication information for the first cell may include an indication of activating/deactivating an SCell, an indication of BWP handover, an indication of search space set handover, an indication of a dormant cell, and an indication of a non-dormant cell. one or more.
  • the first indication information may also include other indications, which will not be listed one by one here.
  • the configuration BWP of the primary cell PCell can be configured with at least one USS that includes a PDCCH candidate that can carry the PDCCH that schedules the data of the first cell
  • the configuration BWP of the secondary cell SCell can also be configured with at least one USS that includes the PDCCH that can carry the scheduling data of the first cell.
  • the USS of the PDCCH candidate of the data PDCCH of a cell is in the working state.
  • S301a is specifically: according to the first indication information, the access network device determines that at least one USS of the PCell sends the PDCCH for scheduling the data of the third cell, and determines to stop the transmission of at least one USS on the SCell for scheduling the third cell the PDCCH of the data.
  • the access network device may also determine, according to the first indication information, that at least one USS on the SCell sends the PDCCH for scheduling the data of the third cell, and determines to stop the at least one USS on the PCell from sending the data for scheduling the third cell. PDCCH.
  • the access network device sends the first indication information to the terminal device.
  • the terminal device monitors the PDCCH for scheduling data of the third cell on at least one USS in the first cell.
  • the terminal device receives the first indication information.
  • the terminal device is in a state of monitoring the PDCCH for scheduling data of the third cell on at least one USS in the first cell, and receives the first indication information.
  • the terminal device executes S302a before the terminal device receives the first indication information.
  • the terminal device executes S302a.
  • the first cell may be the primary cell PCell, and the second cell may be the secondary cell SCell.
  • the first cell may be the secondary cell SCell, and the second cell may be the primary cell PCell.
  • the first cell may be a secondary cell SCell, and the second cell may be another secondary cell SCell.
  • the first indication information is used to determine to stop monitoring the PDCCH used for scheduling data of the third cell on at least one USS of the first cell, or to monitor at least one USS of the second cell for data scheduling of the third cell the PDCCH.
  • the content of the first indication information is also different accordingly. Specifically include the following categories:
  • the first type the first cell is the secondary cell SCell, and the second cell is the primary cell PCell
  • the first indication information includes at least one of the following indications:
  • An indication of BWP handover on the SCell wherein the BWP indicated by the BWP handover indication to be handed over does not have a first USS, and the first USS is a USS that includes a PDCCH candidate for a PDCCH that can carry data for scheduling the third cell;
  • search space set switching instruction is to indicate that there is no first USS in the search space set to be switched to.
  • the second type the first cell is the secondary cell SCell, and the second cell is the primary cell PCell
  • the first indication information includes at least one of the following indications:
  • An indication of BWP handover on the PCell wherein the BWP indicated by the BWP handover indication to be handed over has a first USS, and the first USS is a USS that includes a PDCCH candidate for a PDCCH that can carry data for scheduling the third cell;
  • the indication of search space set switching on the PCell, wherein the search space set switching instruction to indicate that the search space set to be switched to has the first USS.
  • the third type the first cell is the primary cell PCell, and the second cell is the secondary cell SCell
  • the first indication information includes at least one of the following indications:
  • An indication of BWP handover on the SCell wherein the BWP indicated by the BWP handover indication to be handed over has a first USS, and the first USS is a USS that includes a PDCCH candidate for a PDCCH that can carry data for scheduling the third cell;
  • search space set switching instruction to indicate that there is a first USS in the search space set to be switched to.
  • the fourth type the first cell is the primary cell PCell, and the second cell is the secondary cell SCell
  • the first indication information includes at least one of the following indications:
  • An indication of BWP handover on PCell wherein the BWP indicated by the BWP handover indication to be handed over does not have a first USS, and the first USS is a USS that includes a PDCCH candidate for a PDCCH that can carry data for scheduling the third cell;
  • the indication of search space set switching on the PCell wherein the search space set switching indication to indicate that there is no first USS in the search space set to be switched to.
  • the fifth type the first cell is the first secondary cell SCell, and the second cell is the second secondary cell SCell
  • the first indication information includes at least one of the following indications:
  • the BWP handover indication on the second SCell wherein the BWP indicated by the BWP handover indication to be handed over has a first USS, and the first USS is a PDCCH candidate that includes a PDCCH that can carry data for scheduling the third cell USS;
  • the sixth category the first cell is the first secondary cell SCell, and the second cell is the second secondary cell SCell
  • the BWP handover indication on the first SCell, where the BWP indicated by the BWP handover indication to be handed over does not have the first USS, and the first USS is a PDCCH candidate that includes a PDCCH that can carry data for scheduling the third cell USS;
  • search space set switching indication is to indicate that there is no first USS in the search space set to be switched to.
  • the terminal device stops monitoring the PDCCH used for scheduling the data of the third cell on at least one USS of the first cell, or determines to monitor the PDCCH used for scheduling the data of the third cell on at least one USS on the second cell The PDCCH of the data of the three cells.
  • the first cell is the secondary cell SCell
  • the second cell is the primary cell PCell
  • the third cell is the primary cell PCell or the secondary cell SCell
  • the first indication information includes an indication of deactivating the SCell
  • the terminal device deactivates the SCell according to the instruction of the deactivated SCell, or stops the deactivation timer sCellDeactivationTimer of the SCell, or refreshes or clears all the HARQ buffers on the SCell. At this time, the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one first USS on the PCell.
  • the first cell is the secondary cell SCell
  • the second cell is the primary cell PCell
  • the third cell is the primary cell PCell or the secondary cell SCell
  • the first indication information is carried in the DCI
  • the first indication information is included on the SCell Indication of the BWP switch
  • the terminal device switches the BWP to be switched to according to the BWP switching instruction on the SCell, the BWP to be switched to does not have the first USS, and the first USS is the PDCCH containing the PDCCH that can carry the data scheduled in the third cell Candidate USS.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one first USS on the PCell.
  • the first cell is the secondary cell SCell
  • the second cell is the primary cell PCell
  • the third cell is the primary cell PCell or the secondary cell SCell
  • the first indication information is carried in the DCI
  • the first indication information includes configuring the SCell as Indication of dormant cell
  • the terminal device indicates that the SCell is a dormant cell according to the secondary carrier dormancy indication SCell dormancy indication field in DCI format 0_1 or 1_1, and the BWP activated on the SCell is switched to the dormant BWP.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one first USS on the PCell, and determines to stop monitoring the data for scheduling the third cell on at least one USS of the first SCell the PDCCH.
  • the access network device configures a maximum of 5 SCell groups through the parameter SCell-groups-for-dormancy-within-active-time, and the SCell dormancy indication has a maximum of 5 bits, and each bit corresponds to one of the SCell groups.
  • the bit indication of the terminal device as '0', the BWP is switched to the dormant BWP on each activated SCell in the corresponding SCell group.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one first USS on the PCell, and determines to stop monitoring the data for scheduling the third cell on at least one USS of the first SCell the PDCCH.
  • the terminal device indicates that the SCell is a dormant cell according to a specific field in the DCI format 1_1, the BWP activated on the SCell is switched to the dormant BWP, and there is no first USS on the dormant BWP, and the first USS contains the bearer scheduling in the first USS.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one first USS on the PCell, and determines to stop monitoring the data for scheduling the third cell on at least one USS of the first SCell the PDCCH.
  • the terminal device indicates that the SCell is a dormant cell according to the secondary carrier dormancy indication SCell dormancy indication field in DCI format 2_6, the BWP activated on the SCell is switched to the dormant BWP, there is no first USS on the dormant BWP, and the first USS is USS containing the PDCCH candidates of the PDCCH that can carry data scheduled in the third cell.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one first USS on the PCell, and determines to stop monitoring the data for scheduling the third cell on at least one USS of the first SCell the PDCCH.
  • the first cell is the secondary cell SCell
  • the second cell is the primary cell PCell
  • the third cell is the primary cell PCell or the secondary cell SCell
  • the first indication information is carried in the DCI
  • the first indication information is included on the SCell
  • the terminal device receives the DCI format 2_0, indicating that the search space set switching occurs on the SCell, wherein the search space set switching instruction to indicate that the search space set to be switched to has the first USS, and the first USS is in the bearer
  • the first time slot after the time slot to which the PDCCH symbol of the DCI format 2_0 and the handover capability P switch symbol belong the terminal device determines to monitor the PDCCH used for scheduling the data of the third cell on at least one first USS on the PCell , stop monitoring the PDCCH for scheduling data of the third cell on at least one USS of the SCell.
  • the terminal device monitors the PDCCH used for scheduling data of the third cell on at least one first USS on the SCell, and the timer expires on the current time slot, and the terminal device is at the time when the symbol of the PDCCH after the current time slot belongs.
  • the terminal device determines to monitor the PDCCH used for scheduling the data of the third cell on at least one first USS on the PCell, and stops monitoring the PDCCH used for scheduling the third cell on at least one USS of the SCell. PDCCH of data.
  • the terminal device monitors the PDCCH that schedules the data of the third cell on the USS whose identifier is 1 in the search space group, and on the SCell, after the time slot to which the symbol of the PDCCH carrying the DCI format and the symbol of the switching capability P switch belong.
  • the terminal device determines to monitor the PDCCH used for scheduling the data of the third cell on at least one first USS on the PCell, and stops monitoring the PDCCH used for scheduling the data of the third cell on at least one USS of the SCell. PDCCH.
  • the first cell is the secondary cell SCell
  • the second cell is the primary cell PCell
  • the third cell is the primary cell PCell or the secondary cell SCell
  • the first indication information includes an indication of BWP handover on the PCell
  • the terminal device switches the BWP to be switched to according to the BWP switching instruction on the PCell.
  • the BWP to be switched to has a first USS, and the first USS is a PDCCH that includes a PDCCH that can carry data scheduled in the third cell Candidate USS.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one USS of the PCell, and determines to stop monitoring the PDCCH for scheduling data of the third cell on at least one first USS on the SCell.
  • the first cell is the secondary cell SCell
  • the second cell is the primary cell PCell
  • the third cell is the primary cell PCell or the secondary cell SCell
  • the first indication information includes an indication of search space set switching on the PCell
  • the terminal device switches the BWP to be switched to according to the instruction of the search space set switch on the PCell, and the BWP to be switched to has a first USS, and the first USS is a PDCCH that contains data that can be scheduled in the third cell USS of the PDCCH candidates.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one USS of the PCell, and determines to stop monitoring the PDCCH for scheduling data of the third cell on at least one first USS on the SCell.
  • the first cell is the primary cell PCell
  • the second cell is the secondary cell SCell
  • the third cell is the primary cell PCell or the secondary cell SCell
  • the first indication information includes an indication of activating the SCell
  • the terminal device activates the SCell according to the instruction of activating the SCell. At this time, the terminal device determines to monitor the PDCCH used for scheduling data of the third cell on at least one first USS on the SCell, and determines to stop on at least one USS of the PCell The PDCCH for scheduling data of the third cell is monitored.
  • the first cell is the primary cell PCell
  • the second cell is the secondary cell SCell
  • the third cell is the primary cell PCell or the secondary cell SCell
  • the first indication information is carried in the DCI
  • the first indication information is included on the SCell Indication of the BWP switch
  • the terminal device switches the BWP to be switched to according to the BWP switching instruction on the SCell, and the BWP to be switched to has a first USS, and the first USS is a PDCCH containing a PDCCH that can carry data scheduled in the third cell Candidate USS.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one first USS on the SCell, and determines to stop monitoring the PDCCH for scheduling data of the third cell on at least one USS of the PCell.
  • the first cell is the primary cell PCell
  • the second cell is the secondary cell SCell
  • the third cell is the primary cell PCell or the secondary cell SCell
  • the first indication information is carried in the DCI
  • the first indication information includes configuring the SCell as Indication of non-sleep cells
  • the terminal equipment indicates that the SCell is a non-dormancy cell according to the secondary carrier dormancy indication SCell dormancy indication field in DCI format 0_1 or 1_1, and the dormant BWP on the SCell is switched to the non-dormancy BWP, and the non-dormancy BWP has the first USS,
  • the first USS is a USS that includes a PDCCH candidate for a PDCCH that can carry data scheduled in the third cell.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one USS of the SCell.
  • the access network device configures a maximum of 5 SCell groups through the parameter SCell-groups-for-dormancy-within-active-time, and the SCell dormancy indication has a maximum of 5 bits, and each bit corresponds to one of the SCell groups.
  • the bit indication of the terminal device as '1', the dormancy BWP on each SCell in the corresponding SCell group is switched to the non-dormancy BWP, and the non-dormancy BWP has the first USS, and the first USS contains the The USS of the PDCCH candidate of the PDCCH that can carry data scheduled in the third cell.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one USS of the SCell.
  • the terminal device indicates that the SCell is a non-dormant cell according to the specific field in the DCI format 1_1, and the dormancy BWP on the SCell is switched to the non-dormancy BWP, and the non-dormancy BWP does not have a first USS, and the first USS contains The USS of the PDCCH candidate of the PDCCH that can carry data scheduled in the third cell.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one USS of the SCell.
  • the terminal device indicates that the SCell is a non-dormancy cell according to the secondary carrier dormancy indication SCell dormancy indication field in DCI format 2_6, the dormancy BWP on the SCell is switched to the non-dormancy BWP, and there is no first USS on the non-dormancy BWP,
  • the first USS is a USS that includes a PDCCH candidate for a PDCCH that can carry data scheduled in the third cell.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one USS of the SCell.
  • the first cell is the primary cell PCell
  • the second cell is the secondary cell SCell
  • the third cell is the primary cell PCell or the secondary cell SCell
  • the first indication information is carried in the DCI
  • the first indication information is included on the SCell
  • the terminal device receives the instruction of DCI format 2_0 indicating that the search space set switching occurs on the PCell, wherein the search space set switching instruction to indicate that the search space set to be switched to does not have the first USS, and the first USS is not in the search space set that carries the The first time slot after the time slot to which the symbol of the PDCCH of DCI format 2_0 and the switching capability P switch symbol belong, the terminal device determines to monitor the PDCCH used for scheduling data of the third cell on at least one first USS on the SCell, And it is determined to stop monitoring the PDCCH for scheduling data of the third cell on at least one USS of the PCell.
  • the terminal device monitors the PDCCH used for scheduling data of the third cell on at least one first USS on the PCell, and the timer expires on the current time slot, and the terminal device is at the time to which the symbol of the PDCCH after the current time slot belongs.
  • the terminal device determines to monitor the PDCCH for scheduling the data of the third cell on at least one first USS on the SCell, and determines to stop monitoring on at least one USS of the PCell for scheduling the third cell. PDCCH of the data of the cell.
  • the terminal device monitors the PDCCH that schedules the data of the third cell on the USS whose identifier is 0 in the search space group.
  • the first time slot of the terminal equipment determines to monitor the PDCCH for scheduling the data of the third cell on at least one first USS on the SCell, and determines to stop monitoring the data for scheduling the third cell on at least one USS of the PCell the PDCCH.
  • the first cell is the primary cell PCell
  • the second cell is the secondary cell SCell
  • the third cell is the primary cell PCell or the secondary cell SCell
  • the first indication information includes an indication of BWP handover on the PCell
  • the terminal device switches the BWP to be switched to according to the BWP switching instruction on the PCell, the BWP to be switched to does not have the first USS, and the first USS is the PDCCH containing the PDCCH that can carry the data scheduled in the third cell Candidate USS.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one USS of the SCell, and determines to stop monitoring the PDCCH for scheduling data of the third cell on at least one first USS on the PCell.
  • the first cell is the primary cell PCell
  • the second cell is the secondary cell SCell
  • the third cell is the primary cell PCell or the secondary cell SCell
  • the first indication information includes an indication of search space set switching on the Pell
  • the terminal device switches the BWP to be switched to according to the instruction of the search space set switch on the PCell, the BWP to be switched to does not have the first USS, and the first USS is the PDCCH that contains the data that can be scheduled in the third cell USS of the PDCCH candidates.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one USS of the SCell, and determines to stop monitoring the PDCCH for scheduling data of the third cell on at least one first USS on the PCell.
  • the first cell is the first secondary cell SCell
  • the second cell is the second secondary cell SCell
  • the third cell is the first SCell or the second SCell
  • the first indication information includes activating the second SCell instructions
  • the terminal device activates the second SCell according to the instruction of activating the second SCell. At this time, the terminal device determines to monitor the PDCCH used for scheduling the data of the third cell on at least one first USS on the second SCell, and It is determined to stop monitoring the PDCCH for scheduling data of the third cell on at least one USS of the first SCell.
  • the first cell is the first secondary cell SCell
  • the second cell is the second secondary cell SCell
  • the third cell is the first SCell or the second SCell
  • the first indication information is carried in the DCI
  • the The first indication information includes an indication of BWP handover on the second SCell
  • the terminal device switches the BWP to be switched to according to the BWP switching instruction on the second SCell.
  • the BWP to be switched to has a first USS, and the first USS contains the data that can carry the data scheduled in the third cell.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one first USS on the second SCell, and determines to stop monitoring on at least one USS of the first SCell for scheduling the third cell PDCCH of the data of the cell.
  • the first cell is the first secondary cell SCell
  • the second cell is the second secondary cell SCell
  • the third cell is the first SCell or the second SCell
  • the first indication information is carried in the DCI
  • the The first indication information includes an indication to configure the second SCell as a non-sleep cell
  • the terminal device indicates that the second SCell is a non-dormancy cell according to the secondary carrier dormancy indication SCell dormancy indication field in DCI format 0_1 or 1_1, and the dormant BWP on the second SCell is switched to the non-dormancy BWP, the non-dormancy BWP
  • a first USS which is a USS that includes a PDCCH candidate for a PDCCH that can carry data scheduled in the third cell.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one USS of the second SCell, and determines to stop monitoring the data for scheduling the third cell on at least one USS of the first SCell the PDCCH.
  • the access network device configures a maximum of 5 SCell groups through the parameter SCell-groups-for-dormancy-within-active-time, and the SCell dormancy indication has a maximum of 5 bits, and each bit corresponds to one of the SCell groups.
  • the bit indication of the terminal device as '1', the dormancy BWP on each second SCell in the corresponding SCell group is switched to the non-dormancy BWP, the non-dormancy BWP has the first USS, the first The USS is a USS containing a PDCCH candidate for a PDCCH that can carry data scheduled in the third cell.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one USS of the second SCell, and determines to stop monitoring the data for scheduling the third cell on at least one USS of the first SCell the PDCCH.
  • the terminal device indicates that the second cell is a non-dormant cell according to a specific field in DCI format 1_1, and the dormancy BWP on the second cell is switched to a non-dormancy BWP, and there is no first USS on the non-dormancy BWP, and the first USS is on the non-dormancy BWP.
  • a USS is a USS containing a PDCCH candidate for a PDCCH that can carry data scheduled in the third cell.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one USS of the second SCell, and determines to stop monitoring the data for scheduling the third cell on at least one USS of the first SCell the PDCCH.
  • the terminal device indicates that the second SCell is a non-dormancy cell according to the secondary carrier dormancy indication SCell dormancy indication field in DCI format 2_6, and the dormancy BWP on the second SCell is switched to the non-dormancy BWP, the non-dormancy BWP
  • the first USS is a USS that includes a PDCCH candidate for a PDCCH that can carry data scheduled in the third cell.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one USS of the second SCell, and determines to stop monitoring the data for scheduling the third cell on at least one USS of the first SCell the PDCCH.
  • the first cell is the first secondary cell SCell
  • the second cell is the second secondary cell SCell
  • the third cell is the first SCell or the second SCell
  • the first indication information is carried in the DCI
  • the The first indication information includes an indication of search space set switching on the second SCell
  • the terminal device receives the instruction of DCI format 2_0 indicating that the search space set switching occurs on the PCell, wherein the search space set switching instruction to indicate that the search space set to be switched to does not have the first USS, and the first USS is not in the search space set that carries the In the first time slot after the time slot to which the PDCCH symbol of DCI format 2_0 and the switching capability P switch symbol belong, the terminal device determines to monitor the data used for scheduling the third cell on at least one first USS on the second SCell and determine to stop monitoring the PDCCH for scheduling data of the third cell on at least one USS of the first SCell.
  • the terminal device monitors the PDCCH used to schedule the data of the third cell on at least one first USS on the first SCell, and the timer expires on the current time slot, and the symbol of the PDCCH after the current time slot by the terminal device In the first time slot after the time slot to which it belongs, the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one first USS on the second SCell, and determines to stop at least one of the first USS on the first SCell. A PDCCH for scheduling data of the third cell is monitored on one USS.
  • the terminal device monitors the PDCCH that schedules the data of the third cell on the USS whose identifier is 0 in the search space group, and on the first SCell, the symbol of the PDCCH carrying the DCI format and the symbol of the switching capability P switch belong to In the first time slot after the time slot, the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one first USS on the second SCell, and determines to stop on at least one USS of the first SCell The PDCCH for scheduling data of the third cell is monitored.
  • the first cell is the first secondary cell SCell
  • the second cell is the second secondary cell SCell
  • the third cell is the first SCell or the second SCell
  • the first indication information includes deactivating the first SCell Indication of the SCell
  • the terminal device deactivates the first SCell according to the instruction of the deactivated first SCell, or stops the deactivation timer sCellDeactivationTimer of the first SCell, or refreshes or clears the first SCell on the All hybrid automatic repeat request buffer HARQ buffer.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one first USS on the second SCell.
  • the first cell is the first secondary cell SCell
  • the second cell is the second secondary cell SCell
  • the third cell is the first SCell or the second SCell
  • the first indication information is carried in the DCI
  • the The first indication information includes an indication of BWP handover on the first SCell
  • the terminal device switches the BWP to be switched to according to the BWP switching instruction on the first SCell. There is no first USS on the BWP to be switched to, and the first USS contains the data that can carry the data scheduled in the third cell.
  • the USS of the PDCCH candidate of the PDCCH At this time, the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one first USS on the second SCell.
  • the first cell is the first secondary cell SCell
  • the second cell is the second secondary cell SCell
  • the third cell is the first SCell or the second SCell
  • the first indication information is carried in the DCI
  • the The first indication information includes an indication to configure the first SCell as a dormant cell
  • the terminal device indicates that the first SCell is a dormant cell according to the secondary carrier dormancy indication SCell dormancy indication field in DCI format 0_1 or 1_1, and the BWP activated on the SCell is switched to the dormant BWP. There is no first USS on the dormant BWP.
  • a USS is a USS containing a PDCCH candidate for a PDCCH that can carry data scheduled in the third cell.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one first USS on the second SCell, and determines to stop monitoring on at least one USS of the first SCell for scheduling the third cell PDCCH of the cell's data.
  • the access network device configures a maximum of 5 SCell groups through the parameter SCell-groups-for-dormancy-within-active-time, and the SCell dormancy indication has a maximum of 5 bits, and each bit corresponds to one of the SCell groups.
  • the bit indication of the terminal device as '0', the BWP is switched to the dormant BWP on each activated first SCell in the corresponding SCell group.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one first USS on the second SCell, and determines to stop monitoring on at least one USS of the first SCell for scheduling the third cell PDCCH of the cell's data.
  • the terminal device indicates that the first SCell is a dormant cell according to a specific field in the DCI format 1_1, the BWP activated on the first SCell is switched to the dormant BWP, there is no first USS on the dormant BWP, and the first USS is USS containing the PDCCH candidates of the PDCCH that can carry data scheduled in the third cell.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one first USS on the second SCell, and determines to stop monitoring on at least one USS of the first SCell for scheduling the third cell PDCCH of the data of the cell.
  • the terminal device indicates that the first SCell is a dormant cell according to the secondary carrier dormancy indication SCell dormancy indication field in DCI format 2_6, the BWP activated on the first SCell is switched to the dormant BWP, and there is no first USS on the dormant BWP , the first USS is a USS that includes a PDCCH candidate of a PDCCH that can carry data scheduled in the third cell.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one first USS on the second SCell, and determines to stop monitoring on at least one USS of the first SCell for scheduling the third cell PDCCH of the cell's data.
  • the first cell is the first secondary cell SCell
  • the second cell is the second secondary cell SCell
  • the third cell is the first SCell or the second SCell
  • the first indication information is carried in the DCI
  • the The first indication information includes an indication of search space set switching on the first SCell
  • the terminal device receives DCI format 2_0, indicating that the search space set switching occurs on the first SCell, wherein the search space set switching instruction to indicate that the search space set to be switched to has the first USS , in the first time slot after the time slot to which the symbol of the PDCCH carrying the DCI format 2_0 and the switching capability P switch symbol belong, the terminal device determines to monitor at least one first USS on the second SCell for scheduling the first time slot. For the PDCCH of the data of the three cells, stop monitoring the PDCCH for scheduling the data of the third cell on at least one USS of the first SCell.
  • the terminal device monitors the PDCCH used to schedule the data of the third cell on at least one first USS on the first SCell, and the timer expires on the current time slot, and the symbol of the PDCCH after the current time slot by the terminal device In the first time slot after the time slot to which it belongs, the terminal device determines to monitor the PDCCH used to schedule the data of the third cell on at least one first USS on the second SCell, and stops at at least one USS of the first SCell The PDCCH used to schedule the data of the third cell is monitored.
  • the terminal device monitors the PDCCH that schedules the data of the third cell on the USS whose identifier is 1 in the search space group, and on the first SCell, the symbol of the PDCCH carrying the DCI format and the symbol of the switching capability P switch belong to In the first time slot after the time slot, the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one first USS on the second SCell, and stops monitoring on at least one USS of the first SCell PDCCH for scheduling data of the third cell.
  • the access network device sends the PDCCH to the terminal device.
  • the first indication information provided in this embodiment of the present application may include the first type of indication information and the second type of indication information, and the first type of indication information is used to determine whether the second cell belongs to the first type of indication information.
  • the PDCCH used for scheduling data of the third cell is monitored on the first set of USSs of a USS, and the second type of indication information is used to determine that monitoring on the second set of USSs belonging to the first USS on the second cell is used for scheduling the third cell the PDCCH of the data.
  • the first type of indication information may include an indication of at least one of scene a1-scenario a6, and correspondingly, the second type of indication information may include at least one indication of scene a1-scenario a6.
  • the first type of indication information may include an indication of at least one of scenarios b1 to b6, and correspondingly, the second type of indication information may include at least one of scenarios b1 to b6.
  • the first type of indication information may include an indication of at least one of scenarios c1 to c4, and correspondingly, the second type of indication information may include an indication of at least one of scenarios c1 to c4.
  • the first type of indication information may include at least one indication of scene d1-scenario d4, and correspondingly, the second type of indication information may include at least one indication of scene d1-scenario d4.
  • the terminal device When the terminal device monitors the PDCCH used for scheduling data of the third cell on at least one USS on the PCell, the terminal device determines to monitor the first set of USS on the PCell for scheduling according to the indication of the USS handover on the PCell For the PDCCH of the data of the third cell, stop monitoring the PDCCH for scheduling the data of the third cell on the second set of USSs of the SCell.
  • the first type of indication information includes an indication of configuring the SCell as a dormant cell, and the terminal device may determine that the SCell has no possibility of data scheduling in the near future. Therefore, the terminal device may determine to monitor the PDCCH for scheduling data of the third cell on the first set of USSs on the PCell.
  • the second type of indication information includes an indication of search space set switching on the SCell.
  • the terminal device can determine that the PDCCH load on the PCell is reduced. Therefore, the terminal device can determine that the second set of USS on the PCell is used for monitoring. PDCCH for scheduling data of the third cell.
  • the first indication information includes respectively instructing the terminal equipment to monitor the PDCCH used for scheduling the data of the third cell on each set of USS in each cell, which can meet the requirements of various scenarios. Different needs, high flexibility.
  • FIG. 4 is a schematic flowchart of another cross-carrier scheduling method provided by an embodiment of the present application.
  • the cross-carrier scheduling method provided by the embodiment of the present application may further include:
  • the terminal device determines, according to the first indication information, the time for stopping at least one USS on the first cell from monitoring the PDCCH for scheduling data of the third cell, or determines to monitor at least one USS on the second cell for monitoring the PDCCH used for scheduling data of the third cell.
  • the start time of the PDCCH for scheduling the data of the third cell is not limited to the first indication information, the time for stopping at least one USS on the first cell from monitoring the PDCCH for scheduling data of the third cell, or determines to monitor at least one USS on the second cell for monitoring the PDCCH used for scheduling data of the third cell.
  • the access network device determines, according to the first indication information, the time at which at least one USS in the first cell stops sending the PDCCH for scheduling the data of the third cell, or determines the time when at least one USS in the second cell sends the PDCCH for scheduling the data of the third cell.
  • the access network device and the terminal device determine the above time in the same manner.
  • the following takes the terminal device as an example to illustrate.
  • the terminal device determines that at least one USS on the first cell stops monitoring the time of the PDCCH used to schedule the data of the third cell in different ways, or the terminal device determines that the The manner in which the start time of the PDCCH for scheduling data of the third cell is monitored on at least one USS of the second cell is different.
  • scene a1 scene b1, scene c1 and scene d1
  • S303b may specifically be:
  • the terminal device determines, according to the effective time of the deactivation of the first cell, the start time of monitoring the PDCCH used for scheduling data of the third cell on at least one USS in the second cell; or,
  • the terminal device determines, according to the effective time of the activation of the second cell, the time for stopping at least one USS on the first cell from monitoring the PDCCH for scheduling data of the third cell.
  • S303b may specifically be:
  • the terminal device determines the time to stop at least one USS on the first cell from monitoring the PDCCH used to schedule the data of the third cell, or determines to monitor the PDCCH on at least one USS on the second cell.
  • the time specified in the protocol is related to the DCI parsing time.
  • the terminal device is not configured with minimum K0 and searchSpaceSwitchingDelay-r16, and the terminal device determines the at least one USS that stops on the first cell according to the end time of the DCI and the first time slot after the time slot to which the protocol specified time belongs. The time to monitor the PDCCH for scheduling data for the third cell, or to determine the start time for monitoring the PDCCH for scheduling data for the third cell on at least one USS on the second cell.
  • the terminal device determines, according to the DCI and the search space set switching time, the time at which at least one USS on the first cell stops monitoring the PDCCH used to schedule the data of the third cell, or determines the time when at least one USS on the second cell stops monitoring the PDCCH for scheduling data of the third cell; The start time of the PDCCH for scheduling data of the third cell is monitored.
  • the terminal device is not configured with minimum K0, the terminal device reports searchSpaceSwitchingDelay-r16 to the access network device, and the access network device sends the switching capability P switch according to the searchSpaceSwitchingDelay-r16.
  • the terminal device determines, according to the end time of the DCI and the switch time of the search space set, the time at which at least one USS on the first cell stops monitoring the PDCCH used to schedule the data of the third cell, or determines the time when at least one USS on the second cell stops monitoring the PDCCH for scheduling data of the third cell.
  • the start time of the PDCCH used to schedule the data of the third cell is monitored.
  • the terminal device determines, according to the DCI and the configured minimum K0, the time at which at least one USS on the first cell is to stop monitoring the PDCCH used to schedule the data of the third cell, or determines to monitor at least one USS on the second cell.
  • the start time of the PDCCH used to schedule the data of the third cell is not limited to the DCI and the configured minimum K0.
  • the terminal device is configured with minimum K0, the terminal device does not report searchSpaceSwitchingDelay-r16 to the access network device, and the access network device does not deliver the switching capability P switch .
  • the terminal device determines the time to stop monitoring the PDCCH used for scheduling the data of the third cell by at least one USS on the first cell, or determines the time to monitor the PDCCH on at least one USS on the second cell. The start time of the PDCCH for scheduling the data of the third cell.
  • the terminal device determines, according to the larger one of the configured minimum K0 and the search space group switching time, the time at which at least one USS on the first cell is to stop monitoring the PDCCH used to schedule the data of the third cell, or determines when The start time of the PDCCH for scheduling data of the third cell is monitored on at least one USS on the second cell.
  • the terminal device is configured with minimum K0, the terminal device reports searchSpaceSwitchingDelay-r16 to the access network device, and the access network device delivers the switching capability P switch .
  • the terminal device determines the time at which the at least one USS on the first cell stops monitoring the PDCCH used for scheduling data of the third cell according to the larger one of the minimum K0 and the search space group switching time, or determines the time when the second cell stops monitoring the PDCCH for data of the third cell.
  • the start time of the PDCCH for scheduling data of the third cell is monitored on at least one USS of the third cell.
  • scene a2 scene a5, scene b2, scene b5, scene c2 and scene d2
  • S303b can be specifically:
  • the terminal device determines, according to the effective time of the BWP handover in the first cell, the start time of monitoring the PDCCH used to schedule the data of the third cell on at least one USS in the second cell; wherein, the indication of the BWP handover There is no first USS on the indicated BWP to be handed over, and the first USS is a USS that includes a PDCCH candidate that can carry the PDCCH that schedules the data of the third cell.
  • S303b may specifically be:
  • the terminal device determines the time to stop at least one USS on the first cell from monitoring the PDCCH used to schedule the data of the third cell, or determines to monitor the PDCCH on at least one USS on the second cell.
  • the time specified in the protocol is related to the DCI parsing time.
  • the terminal device is not configured with minimum K0 and searchSpaceSwitchingDelay-r16, and the terminal device determines the at least one USS that stops on the first cell according to the end time of the DCI and the first time slot after the time slot to which the protocol specified time belongs. The time to monitor the PDCCH for scheduling data for the third cell, or to determine the start time for monitoring the PDCCH for scheduling data for the third cell on at least one USS on the second cell.
  • the terminal device determines, according to the effective time of the DCI and BWP handover, the time for stopping at least one USS in the first cell from monitoring the PDCCH used to schedule the data of the third cell, or determines the time for at least one USS in the second cell to monitor the PDCCH of the third cell.
  • the start time of the PDCCH for scheduling data of the third cell is monitored.
  • the terminal device is not configured with minimum K0, the terminal device reports searchSpaceSwitchingDelay-r16 to the access network device, and the access network device delivers the switching capability P switch according to the searchSpaceSwitchingDelay-r16.
  • the terminal device determines, according to the end time of the DCI and the effective time of the BWP handover, the time at which the at least one USS on the first cell stops monitoring the PDCCH used for scheduling the data of the third cell, or determines at least one USS on the second cell. The start time of the PDCCH used to schedule the data of the third cell is monitored.
  • the terminal device determines, according to the DCI and the configured minimum K0, the time at which at least one USS on the first cell is to stop monitoring the PDCCH used to schedule the data of the third cell, or determines to monitor at least one USS on the second cell.
  • the start time of the PDCCH used to schedule the data of the third cell is not limited to the DCI and the configured minimum K0.
  • the terminal device is configured with minimum K0, the terminal device does not report searchSpaceSwitchingDelay-r16 to the access network device, and the access network device does not deliver the switching capability P switch .
  • the terminal device determines the time to stop monitoring the PDCCH used for scheduling the data of the third cell by at least one USS on the first cell, or determines the time to monitor the PDCCH on at least one USS on the second cell. The start time of the PDCCH for scheduling the data of the third cell.
  • the terminal device determines, according to the configured minimum K0 and the effective time of the BWP handover, the time at which at least one USS on the first cell stops monitoring the PDCCH used to schedule the data of the third cell, or determines at least one USS on the second cell.
  • the start time of the PDCCH for scheduling data of the third cell is monitored on one USS.
  • the terminal device is configured with minimum K0, the terminal device reports searchSpaceSwitchingDelay-r16 to the access network device, and the access network device delivers the switching capability P switch .
  • the terminal device determines the time for stopping at least one USS in the first cell from monitoring the PDCCH used to schedule the data of the third cell, or determines to monitor at least one USS in the second cell. The start time of the PDCCH used to schedule the data of the third cell.
  • S303b can be specifically:
  • the terminal device determines the start time of monitoring the PDCCH used to schedule data of the third cell on at least one USS in the second cell according to the effective time when the first cell is a dormant cell; For the effective time of the non-sleep cell, determine the time for stopping at least one USS on the first cell from monitoring the PDCCH for scheduling data of the third cell.
  • S303b may specifically be:
  • the terminal device determines the time to stop at least one USS on the first cell from monitoring the PDCCH used to schedule the data of the third cell, or determines to monitor the PDCCH on at least one USS on the second cell.
  • the time specified in the protocol is related to the DCI parsing time.
  • the terminal device is not configured with minimum K0 and searchSpaceSwitchingDelay-r16, and the terminal device determines the at least one USS that stops on the first cell according to the end time of the DCI and the first time slot after the time slot to which the protocol specified time belongs. The time to monitor the PDCCH for scheduling data for the third cell, or to determine the start time for monitoring the PDCCH for scheduling data for the third cell on at least one USS on the second cell.
  • the terminal device determines the time to stop at least one USS on the first cell from monitoring the PDCCH used to schedule the data of the third cell according to the DCI and the effective time of the dormant cell/non-dormant cell, or determines the time when the PDCCH on the second cell is stopped.
  • the start time of the PDCCH for scheduling data of the third cell is monitored on at least one USS.
  • the terminal device is not configured with minimum K0, the terminal device reports searchSpaceSwitchingDelay-r16 to the access network device, and the access network device delivers the switching capability P switch according to the searchSpaceSwitchingDelay-r16.
  • the terminal device determines, according to the end time of the DCI and the effective time of the dormant cell/non-dormancy cell, the time to stop at least one USS on the first cell from monitoring the PDCCH used to schedule the data of the third cell, or determine the time on the second cell
  • the start time of the PDCCH for scheduling data of the third cell is monitored on at least one USS of the third cell.
  • the terminal device determines, according to the DCI and the configured minimum K0, the time at which at least one USS on the first cell is to stop monitoring the PDCCH used to schedule the data of the third cell, or determines to monitor at least one USS on the second cell.
  • the start time of the PDCCH used to schedule the data of the third cell is not limited to the DCI and the configured minimum K0.
  • the terminal device is configured with minimum K0, the terminal device does not report searchSpaceSwitchingDelay-r16 to the access network device, and the access network device does not deliver the switching capability P switch .
  • the terminal device determines the time to stop monitoring the PDCCH used for scheduling the data of the third cell by at least one USS on the first cell, or determines the time to monitor the PDCCH on at least one USS on the second cell. The start time of the PDCCH for scheduling the data of the third cell.
  • the terminal device determines the time to stop at least one USS on the first cell from monitoring the PDCCH used to schedule the data of the third cell, or to determine the time when the second The start time of the PDCCH for scheduling data of the third cell is monitored on at least one USS on the cell.
  • the terminal device is configured with minimum K0, the terminal device reports searchSpaceSwitchingDelay-r16 to the access network device, and the access network device delivers the switching capability P switch .
  • the terminal device determines the time to stop at least one USS on the first cell from monitoring the PDCCH used to schedule the data of the third cell, or determines at least one USS on the second cell. The start time of the PDCCH for scheduling data of the third cell is monitored on one USS.
  • scene a4 scene a6, scene b4, scene b6, scene c4 and scene d4
  • S303b can be specifically:
  • the terminal device determines the start time of monitoring the PDCCH used to schedule the data of the third cell on at least one USS on the second cell according to the time when the search space set is switched on the first cell; wherein, the search space set There is no USS in the set of search spaces to be indicated by the handover indication.
  • S303b may specifically be:
  • the terminal device determines the time at which at least one USS on the first cell is to stop monitoring the PDCCH used to schedule data of the third cell according to the switching time of the DCI and the search space set, or determines at least one USS on the second cell. The start time of the PDCCH used to schedule the data of the third cell is monitored.
  • the terminal device is not configured with minimum K0, the terminal device reports searchSpaceSwitchingDelay-r16 to the access network device, and the access network device delivers the switching capability P switch according to the searchSpaceSwitchingDelay-r16.
  • the terminal device determines, according to the end time of the DCI and the time when the search space set is switched, the time at which at least one USS on the first cell stops monitoring the PDCCH used to schedule the data of the third cell, or at least one USS on the second cell. The start time of the PDCCH for scheduling data of the third cell is monitored on the USS.
  • the terminal device determines the time at which at least one USS on the first cell is stopped to monitor the PDCCH used to schedule the data of the third cell according to the configured minimum K0 and the time when the search space set is switched, or determines the time of the PDCCH on the second cell.
  • the start time of the PDCCH for scheduling data of the third cell is monitored on at least one USS.
  • the terminal device is configured with minimum K0, the terminal device reports searchSpaceSwitchingDelay-r16 to the access network device, and the access network device delivers the switching capability P switch .
  • the terminal device determines, according to the minimum K0 and the time when the search space set is switched, the time at which at least one USS on the first cell stops monitoring the PDCCH used for scheduling data of the third cell, or determines the time when at least one USS on the second cell stops monitoring the PDCCH for scheduling data of the third cell.
  • the start time of the PDCCH for scheduling data of the third cell is monitored.
  • the terminal device determines the time for stopping at least one USS on the first cell from monitoring the PDCCH used for scheduling data of the third cell, or determines to monitor the time on at least one USS on the second cell.
  • the start time of the PDCCH used to schedule the data of the third cell thereby ensuring efficient handover between the two cells and reducing the impact on the scheduling of the first cell.
  • each network element for example, an access network device and a terminal device, includes at least one of a hardware structure and a software module corresponding to executing each function in order to implement the above-mentioned functions.
  • a hardware structure for example, an access network device and a terminal device
  • a software module corresponding to executing each function in order to implement the above-mentioned functions.
  • the present application can be implemented in hardware or a combination of hardware and computer software with the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.
  • the access network device and the terminal device may be divided into functional units according to the foregoing method examples.
  • each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit. middle.
  • the above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units. It should be noted that the division of units in the embodiments of the present application is illustrative, and is only a logical function division, and other division methods may be used in actual implementation.
  • FIG. 5 shows a possible schematic diagram of the structure of the communication device (referred to as the communication device 50 ) involved in the above embodiment, and the communication device 80 includes a processing unit 501 and a communication unit 502 , and may also include a storage unit 503 .
  • the schematic structural diagram shown in FIG. 5 may be used to illustrate the structures of the access network device and the terminal device involved in the foregoing embodiment.
  • the processing unit 501 is used to control and manage the actions of the terminal device, for example, control the terminal device to perform S302a, S302c and S303a, S302a, S302c, S303a and S303b in FIG. 4 , and/or actions performed by the terminal device in other processes described in the embodiments of this application.
  • the processing unit 501 may communicate with other network entities through the communication unit 502, for example, with the access network device shown in FIG. 1 .
  • the storage unit 503 is used to store program codes and data of the terminal device.
  • the communication apparatus 50 may be the terminal equipment, or may be a chip in the terminal equipment.
  • the processing unit 501 is configured to control and manage the actions of the access network device, for example, control the access network device to execute Actions performed by the terminal device in S301a, S302b, and S304 in FIG. 3, S301a, S301b, S302b, and S304 in FIG. 4, and/or other processes described in the embodiments of this application.
  • the processing unit 801 may communicate with other network entities through the communication unit 502, for example, with the terminal device shown in FIG. 1 .
  • the storage unit 503 is used for storing program codes and data of the access network equipment.
  • the communication apparatus 50 may be the access network equipment, or may be a chip in the access network equipment.
  • the processing unit 501 may be a processor or a controller, and the communication unit 502 may be a communication interface, a transceiver, a transceiver, a transceiver circuit, a transceiver device, and the like.
  • the communication interface is a general term, which may include one or more interfaces.
  • the storage unit 503 may be a memory.
  • the processing unit 501 may be a processor or a controller, and the communication unit 502 may be an input interface and/or an output interface, pins or circuits.
  • the storage unit 503 may be a storage unit (for example, a register, a cache, etc.) in the chip, or a storage unit (for example, a read-only memory, a read-only memory, a terminal device or an access network device) located outside the chip. referred to as ROM), random access memory (random access memory, referred to as RAM), etc.).
  • ROM read-only memory
  • RAM random access memory
  • the communication unit may also be referred to as a transceiver unit.
  • the antenna and control circuit with the transceiver function in the communication device 50 may be regarded as the communication unit 502 of the communication device 50
  • the processor with the processing function may be regarded as the processing unit 501 of the communication device 50 .
  • the device in the communication unit 502 for implementing the receiving function may be regarded as a receiving unit, the receiving unit is configured to perform the receiving steps in the embodiments of the present application, and the receiving unit may be a receiver, a receiver, a receiving circuit, or the like.
  • each step in the method provided in this embodiment may be completed by an integrated logic circuit of hardware in a processor or an instruction in the form of software.
  • the steps of the methods disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware processor, or executed by a combination of hardware and software modules in the processor.
  • the processor in this application may include, but is not limited to, at least one of the following: a central processing unit (CPU), a microprocessor, a digital signal processor (DSP), a microcontroller (MCU), or Artificial intelligence processors and other types of computing devices that run software, each computing device may include one or more cores for executing software instructions to perform operations or processing.
  • the processor can be a separate semiconductor chip, or can be integrated with other circuits into a semiconductor chip. For example, it can form a SoC (on-chip) with other circuits (such as codec circuits, hardware acceleration circuits, or various bus and interface circuits).
  • the processor may further include necessary hardware accelerators, such as field programmable gate arrays (FPGA), PLDs (Programmable Logic Devices) , or a logic circuit that implements dedicated logic operations.
  • FPGA field programmable gate arrays
  • PLD Programmable Logic Devices
  • the memory in this embodiment of the present application may include at least one of the following types: read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (random access memory) , RAM) or other types of dynamic storage devices that can store information and instructions, and can also be electrically erasable programmable read-only memory (Electrically erasable programmable read-only memory, EEPROM).
  • ROM read-only memory
  • RAM random access memory
  • EEPROM electrically erasable programmable read-only memory
  • the memory may also be compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compact disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.) , a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, without limitation.
  • CD-ROM compact disc read-only memory
  • optical disc storage including compact disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.
  • magnetic disk storage medium or other magnetic storage device or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, without limitation.
  • Embodiments of the present application further provide a computer-readable storage medium, including instructions, which, when executed on a computer, cause the computer to execute any of the foregoing methods.
  • Embodiments of the present application also provide a computer program product containing instructions, which, when run on a computer, enables the computer to execute any of the above methods.
  • An embodiment of the present application further provides a communication system, including: the above-mentioned access network device and a terminal device.
  • An embodiment of the present application further provides a chip, the chip includes a processor and an interface circuit, the interface circuit is coupled to the processor, the processor is used to run a computer program or instructions to implement the above method, and the interface circuit is used to connect with the processor. communicate with other modules outside the chip.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Des modes de réalisation de la présente demande concernent un procédé de programmation entre porteuses, un dispositif de terminal et un dispositif de réseau d'accès. Selon le procédé, lors de la surveillance d'un canal PDCCH pour programmer des données d'une troisième cellule sur au moins un USS d'une première cellule, un dispositif de terminal reçoit des premières informations d'indication ; et le dispositif de terminal, selon les premières informations d'indication, arrête la surveillance du canal PDCCH pour programmer des données de la troisième cellule sur le ou les USS de la première cellule, et détermine la surveillance du canal PDCCH pour programmer les données de la troisième cellule sur au moins un USS d'une deuxième cellule de sorte qu'une commutation entre des USS de deux cellules peut être accomplie de manière efficace.
PCT/CN2020/123449 2020-10-23 2020-10-23 Procédé de programmation inter-porteuse, dispositif de terminal et dispositif de réseau d'accès WO2022082799A1 (fr)

Priority Applications (5)

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JP2023524527A JP2023546933A (ja) 2020-10-23 2020-10-23 クロスキャリアスケジューリング方法、端末デバイス、及びアクセスネットワークデバイス
CN202080106597.1A CN116349162A (zh) 2020-10-23 2020-10-23 跨载波调度方法、终端设备和接入网设备
EP20958381.4A EP4224741A4 (fr) 2020-10-23 2020-10-23 Procédé de programmation inter-porteuse, dispositif de terminal et dispositif de réseau d?accès
PCT/CN2020/123449 WO2022082799A1 (fr) 2020-10-23 2020-10-23 Procédé de programmation inter-porteuse, dispositif de terminal et dispositif de réseau d'accès
US18/304,526 US20230262686A1 (en) 2020-10-23 2023-04-21 Cross-carrier scheduling method, terminal device, and access network device

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PCT/CN2020/123449 WO2022082799A1 (fr) 2020-10-23 2020-10-23 Procédé de programmation inter-porteuse, dispositif de terminal et dispositif de réseau d'accès

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US18/304,526 Continuation US20230262686A1 (en) 2020-10-23 2023-04-21 Cross-carrier scheduling method, terminal device, and access network device

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JP2023546933A (ja) 2023-11-08
EP4224741A4 (fr) 2023-12-06
US20230262686A1 (en) 2023-08-17
CN116349162A (zh) 2023-06-27

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